Follow The River

The USGS's Streamer map allows you lot to line rivers or streams upstream to their source or downstream to their lastly destinations. The interactive map tin practise really dramatic visualizations of river watersheds, peculiarly when you lot line a river upstream to demonstrate all of its tributaries.

Streamer is incredibly slowly to use. Just click on a river on the map too direct either the 'upstream' or 'downstream' buttons (for the best results click on the Mississippi too and then the upstream button). You tin too larn a detailed line study for your selected river. This study includes information on the river's origin, length too the give away of states it flows through. It too provides details close the streamflow gaging (measuring) stations constitute along the visualized river route.


FernLeaf Interactive has too created an interactive map which allows you lot to stance over 100,000 watershed regions. This map shows the topological relationships betwixt the USGS degree 12 hydrologic units for the entire United States.

The Watersheds Map allows you lot to visualize watershed regions throughout the USA. As you lot mouse-over the map it automatically updates to demonstrate upstream areas inward reddish too downstream areas inward blue. You tin click on the map at anytime to freeze the map stance (click on the map 1 time again to unfreeze & re-enable the dynamic loading of the watershed data).

The map too includes a dynamic URL facility. This way that you lot tin percentage a watershed stance highlighted on the map only past times cutting too pasting the map's electrical flow URL.